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//===-- ubsan_init.cpp ----------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Initialization of UBSan runtime.
//
//===----------------------------------------------------------------------===//
#include "ubsan_platform.h"
#if CAN_SANITIZE_UB
#include "sanitizer_common/sanitizer_common.h"
#include "sanitizer_common/sanitizer_interface_internal.h"
#include "sanitizer_common/sanitizer_libc.h"
#include "sanitizer_common/sanitizer_mutex.h"
#include "sanitizer_common/sanitizer_symbolizer.h"
#include "ubsan_diag.h"
#include "ubsan_flags.h"
#include "ubsan_init.h"
using namespace __ubsan;
const char *__ubsan::GetSanititizerToolName() {
return "UndefinedBehaviorSanitizer";
}
static bool ubsan_initialized;
static StaticSpinMutex ubsan_init_mu;
static void CommonInit() {
InitializeSuppressions();
}
static void UbsanDie() {
if (common_flags()->print_module_map >= 1)
DumpProcessMap();
}
static void CommonStandaloneInit() {
SanitizerToolName = GetSanititizerToolName();
CacheBinaryName();
InitializeFlags();
__sanitizer::InitializePlatformEarly();
__sanitizer_set_report_path(common_flags()->log_path);
AndroidLogInit();
InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);
CommonInit();
// Only add die callback when running in standalone mode to avoid printing
// the same information from multiple sanitizers' output
AddDieCallback(UbsanDie);
Symbolizer::LateInitialize();
}
void __ubsan::InitAsStandalone() {
SpinMutexLock l(&ubsan_init_mu);
if (!ubsan_initialized) {
CommonStandaloneInit();
ubsan_initialized = true;
}
}
void __ubsan::InitAsStandaloneIfNecessary() { return InitAsStandalone(); }
void __ubsan::InitAsPlugin() {
SpinMutexLock l(&ubsan_init_mu);
if (!ubsan_initialized) {
CommonInit();
ubsan_initialized = true;
}
}
#endif // CAN_SANITIZE_UB
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